There are only 14 blimps in the world.
69
The life boat was patented in 1845!
29
Kleenex tissues were originally used as filters in gas masks.
46
Mico headphones read your brainwaves and select music based on your state of mind.
7
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
In the early 1960's, Porsche commercially manufactured farm tractors.
24